From patchwork Fri Nov 16 14:59:34 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Phil Edworthy X-Patchwork-Id: 10686429 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5EE9417DE for ; Fri, 16 Nov 2018 15:00:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4EABB2BB97 for ; Fri, 16 Nov 2018 15:00:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 42BF32C617; Fri, 16 Nov 2018 15:00:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F20532BB97 for ; Fri, 16 Nov 2018 15:00:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728079AbeKQBNM (ORCPT ); Fri, 16 Nov 2018 20:13:12 -0500 Received: from relmlor1.renesas.com ([210.160.252.171]:41782 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2389987AbeKQBNM (ORCPT ); Fri, 16 Nov 2018 20:13:12 -0500 Received: from unknown (HELO relmlir4.idc.renesas.com) ([10.200.68.154]) by relmlie5.idc.renesas.com with ESMTP; 17 Nov 2018 00:00:27 +0900 Received: from relmlii2.idc.renesas.com (relmlii2.idc.renesas.com [10.200.68.66]) by relmlir4.idc.renesas.com (Postfix) with ESMTP id A37C8E3B33; Sat, 17 Nov 2018 00:00:27 +0900 (JST) X-IronPort-AV: E=Sophos;i="5.56,240,1539615600"; d="scan'208";a="297674557" Received: from unknown (HELO vbox.ree.adwin.renesas.com) ([10.226.37.67]) by relmlii2.idc.renesas.com with ESMTP; 17 Nov 2018 00:00:25 +0900 From: Phil Edworthy To: Greg Ungerer , Geert Uytterhoeven Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Phil Edworthy , linux-m68k@lists.linux-m68k.org Subject: [PATCH v6 3/6] m68k: coldfire: Add clk_get_optional() function Date: Fri, 16 Nov 2018 14:59:34 +0000 Message-Id: <20181116145937.27660-4-phil.edworthy@renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181116145937.27660-1-phil.edworthy@renesas.com> References: <20181116145937.27660-1-phil.edworthy@renesas.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP clk_get_optional() returns NULL if not found instead of -ENOENT, otherwise the behaviour is the same as clk_get(). Signed-off-by: Phil Edworthy Acked-by: Greg Ungerer --- arch/m68k/coldfire/clk.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/m68k/coldfire/clk.c b/arch/m68k/coldfire/clk.c index 7bc666e482eb..b221cabc7f54 100644 --- a/arch/m68k/coldfire/clk.c +++ b/arch/m68k/coldfire/clk.c @@ -87,6 +87,17 @@ struct clk *clk_get(struct device *dev, const char *id) } EXPORT_SYMBOL(clk_get); +struct clk *clk_get_optional(struct device *dev, const char *id) +{ + struct clk *clk = clk_get(dev, id); + + if (clk == ERR_PTR(-ENOENT)) + clk = NULL; + + return clk; +} +EXPORT_SYMBOL(clk_get_optional); + int clk_enable(struct clk *clk) { unsigned long flags;